A box is filled with marbles each with a diameter of 18mm if the box is filled with marbles how many can fit Say Ok Google how many spheres fit in a cube how many balls can fit in a cylinder how many?

To determine how many 18mm diameter marbles can fit in a box, you need to know the dimensions of the box. The volume of one marble can be calculated using the formula for the volume of a sphere, ( V = \frac{4}{3} \pi r^3 ), where ( r ) is the radius (9mm in this case). Then, divide the volume of the box by the volume of one marble to find the total number of marbles that can fit. For more complex shapes like cylinders or cubes, similar volume calculations apply, factoring in packing efficiency for spheres.